Clothes drying machine with improved vapour injection arrangement

Abstract

Household-type clothes drying machine provided with a rotating drum ( 1 ), first means adapted to circulate a stream of drying air through said drum and comprising an appropriate inflow conduit and an outflow conduit for said air stream, second means ( 3 ) adapted to generate a gas or vapour stream, a first delivery pipe conduit ( 4 ) connecting said second means with an ejection arrangement located on the inner surface of the loading door of the drum, a second drain pipe conduit ( 7 ) adapted to collect the condensed moisture from said ejection arrangement and convey it into a collecting container; said ejection arrangement comprises a substantially sealed cell that is however provided with a first port ( 9 ) to enable the gas/vapour stream to flow in from said first delivery pipe conduit, a second port ( 10 ) to enable liquid and condensate to flow into said drain pipe conduit, and an ejection window ( 11 ) that opens into the interior of said drum and is adapted to eject said gas/vapour stream flowing in from said first delivery pipe conduit. Inside said cell there is provided a vertically extending wall and said first port is oriented towards said wall, which terminates with a free lower, edge projecting onto the bottom of said cell.

1. A household-type clothes drying machine comprising:
 a rotating drum adapted to hold the clothes and garments to be dried and handled, and provided with a loading aperture, 
 first means adapted to circulate a stream of drying air through said drum and the clothes contained therein, and comprising an appropriate inflow conduit and an appropriate outflow conduit for said air stream, 
 second means adapted to generate a gas/vapour stream, 
 a first delivery pipe conduit connecting said second means with further means provided and adapted to eject said gas/vapour stream towards the interior of said drum, 
 a second drain pipe conduit adapted to collect the condensed moisture from said further means and convey it into a collecting container, 
 
       characterized in that said further means comprise an ejection cell arranged on an inner surface of said loading aperature of the drum, and oriented towards the interior of the same drum, wherein said cell is substantially sealed, but provided with:
 a first port to enable the gas/vapour stream flow in from said first delivery pipe conduit, 
 a second port to enable liquid and condensate to flow into said drain pipe conduit, 
 and an ejection window that opens towards the interior of said drum and is adapted to eject said gas/vapour stream flowing in from said first delivery pipe conduit. 
 
     
     
       2. A household-type clothes drying machine according to  claim 1 , characterized in that inside said cell there is provided a wall extending in a substantially vertical manner, and in that said first port is oriented towards said substantially vertical wall. 
     
     
       3. A household-type clothes drying machine according to  claim 2 , characterized in that said wall terminates with a free lower edge projecting onto the bottom of said cell. 
     
     
       4. A household-type clothes drying machine according to  claim 3 , characterized in that said second port is substantially located in the bottom of said cell. 
     
     
       5. A household-type clothes drying machine according to  claim 4 , characterized in that said substantially vertical wall subdivides the interior of said cell into two distinct chambers connected with each other via a passage or gap formed under said free lower edge of said wall; in that said first port opens into a first one of said chambers; and in that said ejection window opens up in the upper portion of a second one of said chambers. 
     
     
       6. A household-type clothes drying machine according to  claim 1 , characterized in that said ejection window is provided with a plurality of flow-diverting fins adapted to facilitate and promote an even distribution of the gas/vapour stream from said cell towards the interior of said drum. 
     
     
       7. A household-type clothes drying machine according to  claim 1 , characterized in that said drain pipe conduit is provided, along a section thereof, with a siphon-trap arrangement. 
     
     
       8. A household-type clothes drying machine according to  claim 5 , characterized in that said ejection window has a cross-section area of a free-passage aperature thereof, of at least 1.5 cm 2 . 
     
     
       9. A household-type clothes drying machine according to  claim 6 , characterized in that said flow-diverting fins are provided with respective lower edges, which are located inside said second chamber. 
     
     
       10. A household-type clothes drying machine according to  claim 6 , characterized in that said ejection window has a cross-section area of a free-passage aperture thereof, of at least 1.5 cm 2 . 
     
     
       11. A household-type clothes drying machine according to  claim 7 , characterized in that said ejection window has a cross-section area of a free-passage aperture thereof, of at least 1.5 cm 2 .